list = [1, 3, 4, 3, 6, 4]
i = 0
li = []
while i <= len(list) - 1:
    num = list[i]
    list.remove(num)
    if num in list:
        pass
    else:
        li.append(num)
    i += 1
print(li)
# li = []
# while i <= len(list) - 1:
#     num = list.count(list[i])
#     if num ==1:
#         li.append(list[i])
#     else:
#         pass
#     i = i+1
# print(li)
